Magnetic separator.



J.. C. PRESLAR.

MAGNETIC SEPARATOR.

APPLICATION FILED JUNE22-1912.

atented J an. 28, 1913.

JOHN C.' PRESLAR, OF SAN ANTONIO, TEXAS.

MAGNETIC sEPAnAToB..

. Specification of Letters Patent.

Patented Jan. 28, 1913'.-

v Application ined June 22, i912. serieu No. 705,282.

To alt 'whom'z't lrrtay concern.' Y Be it known that I, JOHN C. PRESLAR, a citizen of the United States, residing at San Antonio, in the county of Bexar and StateV of Texas, have invented certain new and useful' Improvements in Magnetic Separators, of which the following is a specification, reference being had therein to the Aaccompanying drawing.

This invention relates to magnets and has special reference .to magnets used in extracting particles of para-magnetic material from grain, cotton, cotton seed, and all other materialwhich has to pass through the milling process.

The principal object of the invention is to .improve and simplify the general construction of magnets of this description so that vthe same may work more positively and, at

the same time, more readily release the substances which may be attracted by them when the same has been carried to the proper point.

Another object of the invention'is to provide an improved form of magnet for use Ain connection with such mechanisms.

Withihe above and other objects in viw,

^ this invention consists in general of certain novel constructions, combinations and arrangements of part-s, as will be hereinafter fully described, illustrated in the accompanying drawings, and specifically claimed.A

In the accompanying drawings, like characters of reference'indicat-e like parts in the several views, and Figure 1 is a vertical median section through the apparatus, the

' same being shown partly in elevation. Fig.

2 is an end view of the apparatus. Fig. 3 is'l a transverse median section of the apparatus partly in elevation. 'I "igL 4 is a diagrammatic view of the course pursued by the material.

The magnet proper consists of a central I core 10 to which is secured apar of poles 11, each of which is provided along its sides with depending flanges l2. 'lhcsc poles 11 have theirexterior surfaces cylindrical and theA ends 12 of the respective poles are spaced from the core to form channels. Furthermore, the poles are longer than the core for the saine purpose, andin these vchannels is wound wire 13 surrounded by the usualinsulationlt. The magnet thus constructedis substantially cylindrical in shape and to each end is secured a circular plate 15 wherefrom projects al shaft 16 which is fixed in suitable supports 17.

Through one ofthe shafts 16 extends a I bus-hing 18 of insulating material through which pass the wires 19 which are connected' to any suitable source of electricit 'Sur-- rounding themagnet isa shellv of ra'ss or the like as indicated at 20 and this shell is carried on. disks 27 fixed at each end and I' provided with stub 'shafts 22.

On one of' the stub shafts 22 is fixed a pulley 23 which is adapted to be connected by a belt 24 with any suitable driving gear. 0n the otherv shaft 23 is fixed a gear 25 Whichmeshes with a'gear 26 fixed upon the ,shaft 27 which has reduced ends 28 journaled in the members 17. On this sha-ft 27 is mounted a. drum 29 carryinga plurality of rows ofbristles 30 and adjacent the drum 29 there is provided a knife 31 supported on a'bar 32 fixed in the' members 17, and the edge of this knife lies in close proximity to the shell 20.

In the operation of the device the magnet being energized by a suitable electric current the shell 2O is set in motion. If now material containing particles of iron or the likev be fed down over the surface of the magnet as for instance by means of a trou h 23 as indicated in F ig.4 the particles of iron will adhere to the drum when the portion of the surface on which they are is oppositerthe pole ot the magnet. When, however, these particles reach the position between the two poles inost if not all 'of them will fall from the magnet.- Those which do' not fallwill be brushed oft" by the revolving' brush assisted by the scraping action of the knifeV edge 31. Thus the material which falls down the trough 33 will be entirely.rid of all para-ii'iagnetic particles.

Iherc has thus been provided aV simple aud cllicieiit device of the kind described and for thc purpose specified.

Haring thus described Athe invention,what is claimed as new, is

In a device of 'the kind described, aframe,

a dia-magnetic shell revolubly mounted in' said frame, an electromagnet within said shell, a scraper having its edge in Contact with said shell, a brush mounted in said frame and arranged to sweep successively over the shell and scraper, and means arranged to caluse the contacting portions of said brush and shell to revolve in the same direction.

l lIn testimony whereof I hereunto alix my slgnature in presence of two Witnesses.

JOHN C. PRESLAR.

VVitI-lesses:

, J. R. BELT,

` E. L. MARTIN. 

